rocker vs Great Britain

rocker and Great Britain both are nouns.

Word	Noun	Adjective	Verb	Adverb
rocker	Yes	No	No	No
Great Britain	Yes	No	No	No

rocker (noun)	Great Britain (noun)
a curved support that permits the supported object to rock to and fro	an island comprising England and Scotland and Wales
a chair mounted on rockers	a monarchy in northwestern Europe occupying most of the British Isles; divided into England and Scotland and Wales and Northern Ireland; `Great Britain' is often used loosely to refer to the United Kingdom
an ice skate with a curved blade
a trough that can be rocked back and forth; used by gold miners to shake auriferous earth in water in order to separate the gold
a teenager or young adult in the 1960s who wore leather jackets and rode motorcycles
a performer or composer or fan of rock music
an attendant who rocks a child in a cradle